Science NewsFLASH

Clean Teeth, Healthy Heart

How often do you clean your teeth? In this week's NewsFlash, we find out why clean teeth might mean a healthy heart. Plus, how evidence for our meat earliest meat eating ancestors coincides with a growth in brain size, mongooses learning from their elders and why transplanting coral can save a reef.

New archaeological evidence suggests human ancestors gave up their vegetarian diet and began feasting on land and aquatic animals 2 million years ago, perhaps boosting their brain size in the process...

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